Im sorry but i dont know but there is exp share ive completed it but i cant remember so im wondering that two!
From proffeser Oak.
From a scientist.
You don't get Exp share in a city but do the following to get Exp share, first go to fuschia city and go to the right there is a big building enter it and go upstairs there is a scientist talk to him he will give you Exp share if you have 50 species of Pokemon in your pokedex.
Professor Rowan's assistant in Eterna City just before the cycling road. Enjoy your Exp. Share! :)
give the exp share to a weak Pokemon when you use any Pokemon to fight exp goes to the fighting Pokemon and the 1 with the exp share.
professor oak gives it to you
wobuffets from victory path have them
deliver the letter to steven then go back to Devon co on the top floor MR stone will then give you the exp share
4 all i know each Pokemon trainer games have only one Exp. Share in the whole game
when youbeat/catch you will receive a red scale give it to mister Pokemon (the guy the you get the 1st egg from) he will give you exp share in return
Half of the exp is given to the Pokemon who has the exp share normally If it is a double battle and the exp share holder is battling he gets 3/4 of the exp If he is not he gets a half and the other 2 battling get 1/4 From: experience
You can find it on wild wynauts and wobbefets they can be found in the cleft.